| An antenna (or aerial) is a transducer for getting or transferring electromagnetic waves. GSM antennas (GSM stands for Global System for Mobile Communication) are created in two types: omnidirectional and directional ones, and are designed to be applied in spots where there is no connection with the mobile operator.
The application of high gain GSM antennas allows to increase the quality of connection and the speed of data transmission in GPRS and EDGE modes. In addition to better connection and the opportunity to use the mobile communication out of the mobile covering, cell antennas are known to reduce the radiation towards the user's head. It is significant, as the specific absorption rates (SAR) are brought down to the minimum and the efficiency of the antenna is enhanced. This way, the application of cell phone antennas ensures excellent performance and high level of health protection.
The designation of cell phone antennas is to convert power between a circuit and the air, this is why the efficiency of the device depends on its input and radiation parameters. Selecting an antenna is an essential step, so we would recommend to talk to professionals. Experts of the firm where you are going to acquire the antenna will help you in making the right choice. But still, keep in mind a number of important parameters while selecting a cell antenna:
- Electric power should be supplied to the antenna with no being reflected back to the circuit. It signifies that the feeding point supplies the electric power, but doesn't take it back;
- The power transferred to the antenna is transformed into radio waves;
- In case of some problems with the impedance, the power should not be supplied to the antenna;
- Do not forget that in case the antenna is made of high loss materials, like conductors and dielectrics, the supplied electric power will be lost owing to transformation into the heat.
So, high gain cell antennas represent a good choice in case you need a stable communication and high-speed data transfer. Furthermore, the usage of cell phone antennas reduces the specific absorption rates and in such a way tells positively upon your health. |
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